Direct comparison between two photos of the “Glasgow” hole, taken only four days apart.
Part of the excavated material has collapsed conspicuously, a little towards the inner hole and a little outside. Some “lumps” have crumbled, while others have changed position.
But the most curious aspect is the change of color, where everything seems to have been covered by a thin reddish layer, except for some rocks that have taken on a coloration decidedly tending to green.
Note in fact how some surface “roughness” are less pronounced in the second image.
I want to emphasize that both images were taken with the same camera, in very similar lighting conditions and have undergone the exact same processing with the same parameters!

Original posts of the individual photos:

Curiosity Sol 2754, May 5, 2020 at 21:20:49 UTC

Curiosity Sol 2758, May 9, 2020 at 23:00:02 UTC

This post has been automatically translated. See the original post here.

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